The experimental values of 2059 β-decay half-lives are systematically analyzed and investigated. We have found that they are in satisfactory agreement with Benford＇s law, which states that the frequency of occurrenc...The experimental values of 2059 β-decay half-lives are systematically analyzed and investigated. We have found that they are in satisfactory agreement with Benford＇s law, which states that the frequency of occurrence of each figure, 1-9, as the first significant digit in a surprisingly large number of different data sets follows a logarithmic distribution favoring the smaller ones. Benford＇s logarithmic distribution of β-deeay half-lives can be explained in terms of Neweomb＇s justification of Benford＇s law and empirical exponential law of β-decay half-lives. Moreover, we test the calculated values of 6721 β-decay half-lives with the aid of Benford＇s law. This indicates that Benford＇s law is useful for theoretical physicists to test their methods for calculating β-decay half-lives.展开更多
We study the entropy of the Gibbons-Maeda-Garfinkle-Horowitz-Strominger （GMGHS） charged black hole, originated from the effective action that emerges in the low-energy of string theory, beyond semiclassical approxi-...We study the entropy of the Gibbons-Maeda-Garfinkle-Horowitz-Strominger （GMGHS） charged black hole, originated from the effective action that emerges in the low-energy of string theory, beyond semiclassical approxi- mations. Applying the properties of exact differentials for three variables to the first law thermodynamics we derive the quantum corrections to the entropy of the black hole. The leading （logarithmic） and non leading corrections to the area law are obtained.展开更多
Visual artists in the island provinces of the Philippines often find themselves navigating through adversities in the production and dissemination of their creative work. With the visual-arts praxis being exclusively ...Visual artists in the island provinces of the Philippines often find themselves navigating through adversities in the production and dissemination of their creative work. With the visual-arts praxis being exclusively cited in the nation’s capital city, the majority of artists spread over an archipelago of seven thousand islands fall under the notion of struggling, but persevering creator. This paper aims to describe and evaluate the art ecology of Cebu City, the art-related conditions of artists and their tenacity. The methodology used for case-creation： semi-structured interviews, in-depth interviews, and observation. The main finding of the study is that contemporary visual artists in the island province of Cebu, Philippines perceive the struggles from the production to the consumption of art as customary to their milieus. The study plots the current visual-arts ecology model of the locale and proposes future innovations for the development of the sector’s value chain. From the context of a developing country, the study also expands the discussion between creating art for art’s sake and art as a market commodity through the intermediate position of artists.展开更多
基金supported by the National Natural Science Foundation of China under Grant Nos. 10675090, 10535010, and 10775068the National Fund for Forstering Talents of Basic Science under Grant No. J0630316+2 种基金the 973 State Key Basic Research and Development Program of China under Grant No. 2007CB815004the CAS Knowledge Innovation Project under Grant No. KJCX2-SW-N02the Research Fund of Doctoral Points under Grant No. 20070284016
文摘The experimental values of 2059 β-decay half-lives are systematically analyzed and investigated. We have found that they are in satisfactory agreement with Benford＇s law, which states that the frequency of occurrence of each figure, 1-9, as the first significant digit in a surprisingly large number of different data sets follows a logarithmic distribution favoring the smaller ones. Benford＇s logarithmic distribution of β-deeay half-lives can be explained in terms of Neweomb＇s justification of Benford＇s law and empirical exponential law of β-decay half-lives. Moreover, we test the calculated values of 6721 β-decay half-lives with the aid of Benford＇s law. This indicates that Benford＇s law is useful for theoretical physicists to test their methods for calculating β-decay half-lives.
基金Supported by the Universidad Nacional de Colombia.Project Code 2010100
文摘We study the entropy of the Gibbons-Maeda-Garfinkle-Horowitz-Strominger （GMGHS） charged black hole, originated from the effective action that emerges in the low-energy of string theory, beyond semiclassical approxi- mations. Applying the properties of exact differentials for three variables to the first law thermodynamics we derive the quantum corrections to the entropy of the black hole. The leading （logarithmic） and non leading corrections to the area law are obtained.
文摘Visual artists in the island provinces of the Philippines often find themselves navigating through adversities in the production and dissemination of their creative work. With the visual-arts praxis being exclusively cited in the nation’s capital city, the majority of artists spread over an archipelago of seven thousand islands fall under the notion of struggling, but persevering creator. This paper aims to describe and evaluate the art ecology of Cebu City, the art-related conditions of artists and their tenacity. The methodology used for case-creation： semi-structured interviews, in-depth interviews, and observation. The main finding of the study is that contemporary visual artists in the island province of Cebu, Philippines perceive the struggles from the production to the consumption of art as customary to their milieus. The study plots the current visual-arts ecology model of the locale and proposes future innovations for the development of the sector’s value chain. From the context of a developing country, the study also expands the discussion between creating art for art’s sake and art as a market commodity through the intermediate position of artists.
